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The more you know, the more you realize you know nothing.
I'm not a perfect person, I never claimed to be. But I'm trying every day to be better than I was yesterday.
Freedom is never voluntarily given by the oppressor; it must be demanded by the oppressed.
释义:在人的一生中,应当做到无愧于古人。即要努力做到像古代的贤人一样,有高尚的品德和行为,不因个人的私欲而做出违背道德和原则的事情。